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3 years ago

Help pls i don’t know it!!!!

Mathematics

2 answers:

Lady_Fox [76]3 years ago

7 0

Answer:

A :)

Step-by-step explanation

Good luck

Had a perfessional look at it.

Orlov [11]3 years ago

3 0

Hello!

Answer:

The answer is C

Step-by-step explanation:

I wrote it in to my graphing calculator

Hope this helps!

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If the diver in item 2 leaves the board with an initial upward speed of 2.00 m/s, find the diver's speed when striking the water

Taya2010 [7]

Answer:

$v_f=9.0774m/s$

Step-by-step explanation:

Let's assume

initial velocity =vi

final velocity=vf

initial height =hi

final height =hf

acceleration due to gravity =g

we can use formula

$\frac{1}{2}v_i^2+gh_i= \frac{1}{2}v_f^2+gh_f$

we are given

$v_i=2m/s$

$h_i=2\times 2=4$

$h_f=0$

$g=9.8m/s^2$

now, we can plug values

$\frac{1}{2}(2)^2+(9.8)(4)= \frac{1}{2}v_f^2+(9.8)(0)$

now, we can solve for vf

$\frac{1}{2}(2)^2+(9.8)(4)= \frac{1}{2}v_f^2$

we get

$v_f=9.0774m/s$

4 0

3 years ago

Mary needs 2 kilograms of potatoes. Which number sentence could be used to figure out how many grams of potatoes Mary needs? (1,

Darina [25.2K]

The answer is B. If 1 kilogram is 1,000 grams and mary needs 2 kilograms of potatoes she would multiply 2 by 1,000 equaling 2,000.

4 0

4 years ago

Brice used a $100 bill to pay for a $65. 82 purchase. How much change should he get back?

love history [14]

$34.18

100.00-65.82= 34.18

5 0

3 years ago

PLEASE HELP!!

Aloiza [94]

Answer:

From the given graph:

the coordinates of triangle RST are;

R= (2, 1),

S= (2,-2),

T= (-1,-2)

Given: Scale factor = $\frac{5}{3}$ and center of dilation at (2,2)

The mapping rule for the dilation applied to the triangle as shown below:

$(x,y) \rightarrow (\frac{5}{3}(x-2)+2 , \frac{5}{3}(y-2)+2 )$ ; where k represents the scale factor i.e, $k=\frac{5}{3}$ or we can write it as ;

For R=(2, 1)

The image R' = $(\frac{5}{3}(2-2)+2 , \frac{5}{3}(1-2)+2 )$

⇒ R'= $(2, \frac{1}{3})$

Similarly for S= (2, -2) and T= (-1,-2)

therefore, the image of S'= $(\frac{5}{3}(2-2)+2 , \frac{5}{3}(-2-2)+2 )$

⇒ S'= $(2, \frac{-14}{3})$

The image of T' = $(\frac{5}{3}(-1-2)+2 , \frac{5}{3}(-2-2)+2 )$

⇒T' = $(-3, \frac{-14}{3})$

Now, labelling the image of triangle R'S'T' as shown in the figure given below

5 0

3 years ago

Read 2 more answers

The volume of a cylinder with a circular base with a radius of 2 meters and prism height of 5 meters is

scZoUnD [109]

Answer:

62.8 $m^{3}$ ; if you use 3.14 for pi

Step-by-step explanation:

The volume of a cylinder is v = $\pi r^{2} h$

$\pi$ is 3.14, the radius is 2, and the height is 5

3.14 times 2 squared times 5 is 62.8

4 0

3 years ago